R
Robert W. Zimmerman
Researcher at Imperial College London
Publications - 210
Citations - 12954
Robert W. Zimmerman is an academic researcher from Imperial College London. The author has contributed to research in topics: Fracture (geology) & Permeability (earth sciences). The author has an hindex of 58, co-authored 208 publications receiving 11316 citations. Previous affiliations of Robert W. Zimmerman include Technion – Israel Institute of Technology & Royal Institute of Technology.
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Hydraulic conductivity of rock fractures
TL;DR: In this article, the authors derived the cubic law of the Navier-Stokes equations for flow between smooth, parallel plates and showed that the effective hydraulic aperture is less than the mean aperture, by a factor that depends on the ratio of the mean value of the aperture to its standard deviation.
Book
Compressibility of Sandstones
TL;DR: In this paper, the authors define the notion of poroelasticity in compressive rock compressibility and stress, and present a method for measuring the pore structure of porous rock compresses.
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Effect of shear displacement on the aperture and permeability of a rock fracture
TL;DR: The results of experiments using radial and unidirectional flow in a carefully described single rough aperture are reported and compared with numerical predictions as discussed by the authors, showing that the aperture distribution became more closely correlated in the direction parallel to the roughness ridges than in the shear direction.
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Compressibility of porous rocks
TL;DR: In this article, four compressibilities are defined for porous rock, relating changes in the bulk and pore volumes to changes in pore and confining pressures, and bounds are derived for these compressibilities involving only the porosity and the elastic moduli of the rock-forming minerals.
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Relation between the Mogi and the Coulomb failure criteria
Adel Al-Ajmi,Robert W. Zimmerman +1 more
TL;DR: In this paper, it was shown that linear Mogi's triaxial failure criterion does a good job in representing rock failure under polyaxial stress states when σ 2 = σ 3.